'I’m not going to lie, it can be lonely': Nicole Scherzinger, 39, confesses to the solitary nature of her success... despite two-year romance with tennis ace Grigor Dimitrov, 26

Yet Nicole Scherzinger admits that despite her romance with Grigor Dimitrov, she still grows lonely due to the difficulties of juggling fame and a personal life - as she laments 'missing out on things' due to her busy schedule.

The 39-year-old X Factor judge spoke to Mirror about her struggles, shortly before throwing herself into the Judges' Houses round of the show, which aired on Saturday evening - during which she fell ill with severe tonsillitis.

Scroll down for video

Tough: Nicole Scherzinger admits that despite her romance with Grigor Dimitrov, she still grows lonely due to the difficulties of juggling fame and a personal life - as she laments 'missing out on things' due to her busy schedule

Though she seldom speaks about him, Nicole is seemingly besotted with Grigor. The couple have been dating since 2015 but she has been typically more tight-lipped on their romance, following her high profile on-off relationship with Lewis Hamilton.

She previously explained: 'When I was younger I spent a lot of time thinking I wasn't lovable. I'm always loving others, but one of the biggest secrets to life is learning to love yourself. I'm learning more to do that.'

Share this article

While she is clearly loved-up, she proved with success is not always happiness as she confessed she often feels lonely while out doing her thing.

Nicole said: 'It’s hard, I’m not going to lie. It can be lonely. I’m always on the road, always by myself. I think anybody in this ­industry feels lonely.'

Hunky: She has been happily loved-up for nearly two years with Grigor (pictured)

Way back when: Though she seldom speaks about him, Nicole is seemingly besotted with Grigor. The couple have been dating since 2015 but she has been typically more tight-lipped on their romance, following her high profile on-off relationship with Lewis Hamilton (pictured)

Nicole and Grigor reportedly began dating in July 2015, shortly after he broke off his two-year romance with fellow tennis star Maria Sharapova.

Nicole was dating Formula 1 champ Lewis on and off for seven years, with both parties said to be heartbroken when they went their separate ways in May 2015.

At 26, the Bulgarian is 12 years Nicole's junior and the brunette went public with the World no 28 as she was pictured kissing him at a tournament in Australia.

The big reveal: At 26, the Bulgarian is 12 years Nicole's junior and the brunette went public with the World no 28 as she was pictured kissing him at a tournament in Australia

Tough times: Beside news of her personal life, she hit headlines when it was revealed she required medical attention while filming Judges' Houses round in South Africa

Beside news of her personal life, she hit headlines when it was revealed she required medical attention while filming Judges' Houses round in South Africa.

Sources tell The Sun that the former Pussycat Dolls singer, who was joined by rapper Stormzy, was placed on an antibiotics drip after it was discovered she had severe tonsillitis which caused her great pain.

She was said to be 'very frightened' after she was struck down while 'thousands of miles from home', yet thankfully she could be treated onsite.

Tough times: Nicole's tense scenes in Judges' Houses aired on Saturday as it was revealed that she reportedly fell ill during filming, in a terrifying incident

Nicole's tense scenes in Judges' Houses aired on Saturday as it was revealed that she reportedly fell ill during filming, in a terrifying incident.

Insiders told the publication: 'Nicole had a lot of pain in her throat, and that was very worrying for her as a singer. She battled through filming but on the last day it got too much and she agreed she needed to see a doctor.

'It was very frightening, especially as she was thousands of miles from home.

'Luckily, she returned to the hotel to finish her scenes that day. Nicole had to get the all-clear from doctors as she had a trip for UNICEF the next day.'

Battling it out: Insiders told the publication: 'Nicole had a lot of pain in her throat, and that was very worrying for her as a singer. She battled through filming but on the last day it got too much and she agreed she needed to see a doctor'

While Nicole enlisted the help of Stormzy, Sharon Osbourne has recruited her famous children Jack and Kelly, while Simon Cowell brought Cheryl back to the fold. Louis was joined by Mika.

Nicole's final six all faced the Six Chair Challenge last weekend, getting through by the skin of their teeth.

Made it through: Sources tell The Sun that the former Pussycat Dolls singer, who was joined by rapper Stormzy, was placed on an antibiotics drip after it was discovered she had severe tonsillitis which caused her great pain

She's back: Nicole's final six all faced the Six Chair Challenge last weekend, getting through by the skin of their teeth

Viewers were left aghast after the American judge sensationally kicked fan-favourite Talia, 32, off during last week's nail-biting round.

She had to answer to a furious crowd as she reversed her decision and welcomed the X Factor hopeful back on stage on Sunday's instalment of the long-running talent show.

With a resounding chorus of 'bring her back', a barefoot Talia was ushered back on stage to which Nicole began: 'Talia my love, the people have spoken. There's something about you girl so i'm going to have to give you a seat back.'